Intramolecular processes of cadmium ethylenebis(oxyethylenenitrilo)tetraacetate: effect of solvents

Autor:	Fei Li, Rui‐Fang Song, Cun‐Zhi Zhang
Rok vydání:	1992
Předmět:	Solvent Reaction rate constant Intramolecular reaction Chemistry Intramolecular force Physical chemistry Organic chemistry General Chemistry Nuclear magnetic resonance spectroscopy Nitrogen inversion Activation energy Solvent effects
Zdroj:	Journal of the Chemical Society, Dalton Transactions. :709
ISSN:	1364-5447 0300-9246
DOI:	10.1039/dt9920000709
Popis:	The influences of solvent mixtures, D2O–(CD3)2SO, –CD3OD and –dioxane, on the intramolecular processes of [Cd(egta)]2–[egta = ethylenebis(oxyethylenenitrilo)tetraacetate] were studied by dynamic nuclear magnetic resonance spectroscopy. It has been shown that the addition of the organic components can increase the rate of nitrogen inversion and decrease the activation energy for this process. Linear relations between the rate constants and the reciprocal of the solvent relative permittivity Iµr were obtained for all three mixed solvents, except at small Iµr values. A water displacement mechanism is proposed.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::86c76445a672148c41f6c78fcf578ac2 https://doi.org/10.1039/dt9920000709 Zobrazit plný text záznamu